I can't post the link, but there's another, different one from stanford about consumer products right now. Just do a newest search for "survey"...this one's 8 minutes for 75 cents.
8 minutes, 80 cents: https://www.mturk.com/mturk/preview?groupId=2QPDNVP3TVOKSF7ESGP7XEO0L2Y03T WARNING - I got stuck (for lack of a better term) part way through the survey. Not sure if the survey is broke or if it's user error on my end or what.
8 question survey that took less than a min for 25 c https://www.mturk.com/mturk/searchbar?selectedSearchType=hitgroups&requesterId=A1NR1HJ3YRXHTX